DL 3946 Ontario to Seattle Flight Status

Delta Air Lines Flight DL3946 from Ontario International Airport ONT to Seattle Tacoma International Airport SEA is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on June 7th, 2025.
Check the table below for DL3946's most recent flight history:

DL 3946 Flight Status & Schedule

Date Departure Arrival Status
Jun 07 14:57 17:05
Landed
Track >
Jun 06 15:01 17:21
Landed
Track >
Jun 05 15:08 17:26
Landed
Track >
Jun 04 15:00 17:24
Landed
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Jun 03 16:51 19:15
Landed Late
Track >

Delta Air Lines DL 3946 Ontario to Seattle Flight Information

Delta Air Lines Flight DL3946 connects Ontario, United States to Seattle, United States, taking off from Ontario International Airport ONT and landing at Seattle Tacoma International Airport SEA.

How long is the DL3946 flight from Ontario to Seattle?

The average flight time from Ontario to Seattle is 2 hours and 18 minutes. The flight distance is 1540 km / 957 miles and the average flight speed is 668 km/h / 415 mph.

What is the On-Time Performance (OTP) of Delta Air Lines Flight DL3946 Ontario to Seattle?

The Airportia On-Time Performance Rating for Delta Air Lines Flight DL3946 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight DL3946 arriving at?

Flight DL3946 arrives at Seattle Tacoma International Airport (SEA) Terminal B.

When was the latest DL3946 flight?

The latest flight took off on Sunday, June 8th, 2025 with the flight status being Landed on 17:05.

How else can the flight DL3946 be referenced as?

This Delta Air Lines flight can also be referenced as DAL3946, DL 3946, DAL 3946.

How often is flight DL3946 delayed?

On average, 14% of all DL3946 flights are delayed. The average delay is 80 minutes.

Can I get compensation for my delayed or cancelled DL3946 flight or baggage issues?

If your DL3946 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our DL3946 Flight Tracker above for more details.

DL3946 and Ontario ONT to Seattle SEA Flights

This is a multi leg flight of Delta Air Lines DL3946. Previous leg is Seattle to Ontario

Flight DL3946 is code-shared by 1 airline using the flight number VS5381

Other flights departing from Ontario ONT: HA79, AS1255, WN4340, WN611

Other flights arriving at Seattle SEA: AS367, AS221, AS1115, AS3293

All flights connecting Ontario ONT to Seattle SEA.

DL3946 Delta Air Lines Flight: Ontario to Seattle Route Map

DL3946 Delta Air Lines Flight Map: Ontario to Seattle
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.